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9 papers · 2 filters
Interplay of Cooper and Kondo singlet formations in high-TC cuprates
T. Sekitani, M. Naito, H. Sato +1
We performed high-field magnetotransport experiments up to 50 T on strained La1.85Sr0.15CuO4 films. Two films with different strain, one expansively strained with Tc ~ 26 K and the…
Synthesis and photoemission study of as-grown superconducting MgB2 thin films
K Ueda, H. Yamamoto, M. Naito
As-grown superconducting thin films of MgB2 were prepared by molecular beam epitaxy (MBE), and studied by X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS). Only films…
Quasiparticles and Energy Scaling in BiSrCaCuO (=1-3): Angle-Resolved Photoemission Spectroscopy
T. Sato, H. Matsui, S. Nishina +4
Angle-resolved photoemission spectroscopy (ARPES) has been performed on the single- to triple-layered Bi-family high-{\it T} superconductors (BiSrCaCuO$_{2n…
Josephson Effect between Condensates with Different Internal Structures
Munehiro Nishida, Noriyuki Hatakenaka, Susumu Kurihara
A general formula for Josephson current in a wide class of hybrid junctions between different internal structures is derived on the basis of the Andreev picture. The formula extend…
DC-SQUID Sensitivity for Readout of Entangled State Quantum Bits
H. Tanaka, Y. Sekine, S. Saito +1
We propose a scheme for entangled state measurement at flux qubits (quantum bits) depending on the sensitivity measurement of a DC-SQUID (Superconducting QUantum Interference Devic…
Evidence for a Transition in the Pairing Symmetry of the Electron-Doped Cuprates La_{2-x}Ce_xCuO_{4-y} and Pr_{2-x}Ce_xCuO_{4-y}
John A. Skinta, Mun-Seog Kim, Thomas R. Lemberger +2
We present measurements of the magnetic penetration depth, λ^{-2}(T), in Pr_{2-x}Ce_{x}CuO_{4-y} and La_{2-x}Ce_{x}CuO_{4-y} films at three Ce doping levels, x, near optimal. Optim…